Answer:
personality style
Step-by-step explanation:
A personality style refers to the inclination or persistence of a person to use certain tools when faced by certain situations. This is based on personal traits and behaviors that have been developed over the years. Here, Kelsey has developed an optimistic, constructive coping mechanism based and resilience based personality style. This makes the development of a psycho-physiological disorder very slim. Hence, the answer is personality style.